Published BVG grade descriptions?

[jchcollins]

Apologies as I think this has come up before, but if it did I never got a great answer:

Can anyone point me to a published grading scale / grading definitions page for BVG? Like one that is tied to their grading site, and not one of the various places on the web where the older Beckett magazine grading standards are sometimes mentioned? Both PSA and SGC have clearly published standards for each respective number grade, but I'll be damned if I can find anything official like this for Beckett.

(For Example):

PSA:

On PSA EX-5 cards, very minor rounding of the corners is becoming evident. Surface wear or printing defects are more visible. There may be minor chipping on edges. Loss of original gloss will be more apparent. Focus of picture may be slightly out-of-register. Several light scratches may be visible upon close inspection, but do not detract from the appeal of the card. Card may show some off-whiteness of borders. Centering must be 85/15 or better on the front, and 90/10 or better on the back.

SGC:

5 EX: 80/20 or better centering, minor rounding or fuzzing of corners, roughness or chipping along edge (no layering), one VERY slight surface or "spider" crease may exist on one side of the card, gloss may be lost from surface with some scratching that does not detract from the aesthetics of the card.

Beckett would not seem to have any such definitions, at least for graded cards...?